http://www.geomapapp.org
Geomapapp is something I want to run. I installed jdk-8u20 - the only version I could find to download for slackware-current, and I get this sort of error
Code:
bash-4.3$ java ./GeoMapApp.jar
Error: Could not find or load main class ..GeoMapApp.jar
bash-4.3$ javac ./GeoMapApp.jar
Exception in thread "main" java.lang.UnsupportedClassVersionError: com/sun/tools/javac/Main : Unsupported major.minor version 52.0
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(Unknown Source)
at java.security.SecureClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.access$100(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.launcher.LauncherHelper.checkAndLoadMain(Unknown Source)
bash-4.3$ javaws ./GeoMapApp.jar
bash-4.3$ Error: A JNI error has occurred, please check your installation and try again
Error: A JNI error has occurred, please check your installation and try again
Is my java too new? Suggestions?